|| Algebraic functions ||

Evaluation of a function

Exercises

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1- Given f(x) = x2 - 1, calculate the images f(3), f(-1), f()

f(3)=8,
f(-1)=0,
f()=2-1
f(3)=8,
f(-1)=-2,
f()=2-1
f(3)=8,
f(-1)=-2,
f() does not exist.		 None of these answers are correct.
     


2- If f(x) = 2x3 - x2 - 1, calculate f(1), f(2), f(-2)

f(1)=0,
f(2)=11,
f(-2)= -21
f(1)=0,
f(2)=11,
f(-2)= -13
f(1)=0,
f(2)=11,
f(-2)= 11		 None of these answers are correct.
     


3- If g(y) = , evaluate g(-4).
g(-4) = 14 g(-4) = -2 g(-4) = 2 None of these answers are correct.
     


4- if f(x) = 3x2 - x + h, evaluate f(-1)
f(-1) = 1 f(-1) = 4 + h f(-1) = 3 None of these answers are correct.
     


5- If s(t) = v0t + where a and v0 are constants, calculate s(2)
s(2) = 2v0 + s(2) = 2v0 + 2a Neither of these answers is correct.
     


6- If f(n) = , calculate f(2)
f(2) = 0 f(2) does not exist. f(2) = 12/0
     


7- If f(z) = 5 - z2, evaluate f(3)
-4 -2 Does not exist.
     


8- Calculate f(t+1), given that f(x) =
f(t+1) = f(t+1) = I need help.
     


9- If f(x) = x2 - 2x - 1, calculate f(x+h)

f(x+h) = x2 + h2 -2x - 2h - 1
f(x+h) = (x+h)2 - 2(x+h) - 1		 I need help.
     


10- If f(x) = 1 - x2, evaluate the expression
-1 -5/3 I need help.
          


|| Algebraic functions ||